CUDA内核不执行

Question

我试图在我的电脑上开始使用CUDA 6.5。 我有WIN 8.1，VS 2013 Ultimate，VGA nvidia NVS300。一切似乎都很好，构建过程成功完成，但是当我运行程序时，内核无法执行。 例如，以下简单代码：

#include "crt/host_runtime.h"
#include <cuda.h>
#include <stdio.h>
#include "cuda.h"
#include "cuda_runtime.h"
#include "device_launch_parameters.h"

__global__ void add(int a, int b, int *c) {*c = a + b;}

int main() {
    int c;
    int *dev_c;
    cudaMalloc((void**)&dev_c, sizeof(int));
    add << <1, 1 >> >(1, 4, dev_c);
    cudaMemcpy(&c, dev_c, sizeof(int), cudaMemcpyDeviceToHost);
    printf("1 + 4 = %d\n", c);
    cudaFree(dev_c);
}

结果是：1 + 4 = 0

但是当我尝试执行默认代码时，该代码将在创建new project -> NVIDIA -> CUDA 6.5时自动生成。 它构建成功，如下所示：

1>------ Build started: Project: test13, Configuration: Debug Win32 ------
1>  Compiling CUDA source file kernel.cu...
1>  
1>  c:\Users\malatrab\documents\visual studio 2013\Projects\test13>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v6.5\bin\nvcc.exe" -gencode=arch=compute_20,code=\"sm_20,compute_20\" --use-local-env --cl-version 2013 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin"  -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v6.5\include" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v6.5\include"  -G   --keep-dir Debug -maxrregcount=0  --machine 32 --compile -cudart static  -g   -DWIN32 -D_DEBUG -D_CONSOLE -D_MBCS -Xcompiler "/EHsc /W3 /nologo /Od /Zi /RTC1 /MDd  " -o Debug\kernel.cu.obj "c:\Users\malatrab\documents\visual studio 2013\Projects\test13\kernel.cu" 
1>  kernel.cu
1>  test13.vcxproj -> c:\users\malatrab\documents\visual studio 2013\Projects\test13\Debug\test13.exe
1>  copy "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v6.5\bin\cudart*.dll" "c:\users\malatrab\documents\visual studio 2013\Projects\test13\Debug\"
1>  C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v6.5\bin\cudart32_65.dll
1>  C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v6.5\bin\cudart64_65.dll
1>          2 file(s) copied.
========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========

但是当我执行它时，我得到以下信息：

addKernel launch failed: invalid device function
addWithCuda failed!press any key to continue .....

以及以下内容：

'test13.exe' (Win32): Loaded 'C:\Users\malatrab\Documents\Visual Studio    2013\Projects\test13\Debug\test13.exe'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\ntdll.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\kernel32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\KernelBase.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Users\malatrab\Documents\Visual Studio 2013\Projects\test13\Debug\cudart32_65.dll'. Module was built without symbols.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msvcr120d.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\nvcuda.dll'. Cannot find or open the PDB file.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\setupapi.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\advapi32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\user32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\shell32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\ws2_32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\cfgmgr32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msvcrt.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\rpcrt4.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\sechost.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\gdi32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\combase.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\shlwapi.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\nsi.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\sspicli.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\cryptbase.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\bcryptprimitives.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\imm32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msctf.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\dwmapi.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\uxtheme.dll'. Symbols loaded.
'test13.exe' (Win32): Unloaded 'C:\Windows\SysWOW64\dwmapi.dll'
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\nvapi.dll'. Cannot find or open the PDB file.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\ole32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\oleaut32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\version.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\devobj.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\wintrust.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\crypt32.dll'. Symbols loaded.
'test13.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msasn1.dll'. Symbols loaded.
The thread 0x1dbc has exited with code 1 (0x1).
The thread 0x1820 has exited with code 1 (0x1).
The program '[1356] test13.exe' has exited with code 1 (0x1).

有谁知道出什么问题了吗？

Answer 1

无效的设备功能错误表示您使用错误的设备体系结构编译选项进行了编译。

因此，内核无法在您的设备上运行。

据我所知，NVS 300的计算能力为1.2，但是您需要通过cudaGetDeviceProperties api函数来确保它的能力。

然后，如果正确，则应在项目的属性-> CUDA C / C ++->设备->代码生成中将arch compile选项设置为compute_12，sm_12。

希望这可以帮助您解决问题。